Course Code
mth311


Question
F is said to be a function from set A to a set B if

Answer
element x in A can be associated with a unique element in B



Question
Let \(f(x)= -7x+5\;\;and\;\;g(x) =10x -12, \;\;find\;(f+g)(x)\)

Answer
\(3x-7\)



Question
Examples of even function include these except

Answer
\(y = tan x\)



Question
A ratio of polynomials is called ……

Answer
rational function



Question
Find the derivative of \(f(x)=x^4+cos x^2 -ln x e^x \)

Answer
\(4x^3-2xsin x^2 -\frac{1}{x} e^x-lnx e^x \)



Question
Find f(-2) if \(f(x)= -2x^3 +5x^2-4x\)

Answer
44



Question
A function \(f : A \rightarrow B \)is said to be a even function if for all \(x\in A\)

Answer
\(f(x)= f(-x)\)



Question
The function f is called a real-valued function of two variables if

Answer
there are two independent variables



Question
The following except one are trigonometric functions in x

Answer
log x



Question
Given that \(f:A\rightarrow B\), then set A is called

Answer
domain


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